/* * Copyright 2021 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #pragma once #include #include #include #include constexpr size_t kDevClassLength = 3; typedef std::array DEV_CLASS; /* Device class */ inline constexpr DEV_CLASS kDevClassEmpty = {}; /* 0x00 is used as unclassified for all minor device classes */ #define BTM_COD_MINOR_UNCLASSIFIED 0x00 #define BTM_COD_MINOR_WEARABLE_HEADSET 0x04 #define BTM_COD_MINOR_CONFM_HANDSFREE 0x08 #define BTM_COD_MINOR_CAR_AUDIO 0x20 #define BTM_COD_MINOR_SET_TOP_BOX 0x24 /* minor device class field for Peripheral Major Class */ /* Bits 6-7 independently specify mouse, keyboard, or combo mouse/keyboard */ #define BTM_COD_MINOR_KEYBOARD 0x40 #define BTM_COD_MINOR_POINTING 0x80 /* Bits 2-5 OR'd with selection from bits 6-7 */ /* #define BTM_COD_MINOR_UNCLASSIFIED 0x00 */ #define BTM_COD_MINOR_JOYSTICK 0x04 #define BTM_COD_MINOR_GAMEPAD 0x08 #define BTM_COD_MINOR_REMOTE_CONTROL 0x0C #define BTM_COD_MINOR_DIGITIZING_TABLET 0x14 #define BTM_COD_MINOR_CARD_READER 0x18 /* e.g. SIM card reader */ #define BTM_COD_MINOR_DIGITAL_PAN 0x1C /* minor device class field for Imaging Major Class */ /* Bits 5-7 independently specify display, camera, scanner, or printer */ #define BTM_COD_MINOR_DISPLAY 0x10 /* Bits 2-3 Reserved */ /* #define BTM_COD_MINOR_UNCLASSIFIED 0x00 */ /* minor device class field for Wearable Major Class */ /* Bits 2-7 meaningful */ #define BTM_COD_MINOR_WRIST_WATCH 0x04 #define BTM_COD_MINOR_GLASSES 0x14 /* minor device class field for Health Major Class */ /* Bits 2-7 meaningful */ #define BTM_COD_MINOR_BLOOD_MONITOR 0x04 #define BTM_COD_MINOR_THERMOMETER 0x08 #define BTM_COD_MINOR_WEIGHING_SCALE 0x0C #define BTM_COD_MINOR_GLUCOSE_METER 0x10 #define BTM_COD_MINOR_PULSE_OXIMETER 0x14 #define BTM_COD_MINOR_HEART_PULSE_MONITOR 0x18 #define BTM_COD_MINOR_STEP_COUNTER 0x20 /*************************** * major device class field ***************************/ #define BTM_COD_MAJOR_COMPUTER 0x01 #define BTM_COD_MAJOR_PHONE 0x02 #define BTM_COD_MAJOR_AUDIO 0x04 #define BTM_COD_MAJOR_PERIPHERAL 0x05 #define BTM_COD_MAJOR_IMAGING 0x06 #define BTM_COD_MAJOR_WEARABLE 0x07 #define BTM_COD_MAJOR_HEALTH 0x09 #define BTM_COD_MAJOR_UNCLASSIFIED 0x1F /*************************** * service class fields ***************************/ #define BTM_COD_SERVICE_LMTD_DISCOVER 0x0020 #define BTM_COD_SERVICE_LE_AUDIO 0x0040 #define BTM_COD_SERVICE_POSITIONING 0x0100 #define BTM_COD_SERVICE_NETWORKING 0x0200 #define BTM_COD_SERVICE_RENDERING 0x0400 #define BTM_COD_SERVICE_CAPTURING 0x0800 #define BTM_COD_SERVICE_OBJ_TRANSFER 0x1000 #define BTM_COD_SERVICE_AUDIO 0x2000 #define BTM_COD_SERVICE_TELEPHONY 0x4000 #define BTM_COD_SERVICE_INFORMATION 0x8000 /* the COD masks */ #define BTM_COD_MINOR_CLASS_MASK 0xFC #define BTM_COD_MAJOR_CLASS_MASK 0x1F #define BTM_COD_SERVICE_CLASS_LO_B 0x00E0 #define BTM_COD_SERVICE_CLASS_MASK 0xFFE0 inline constexpr DEV_CLASS kDevClassUnclassified = { 0x00, BTM_COD_MAJOR_UNCLASSIFIED, BTM_COD_MINOR_UNCLASSIFIED}; /* class of device field macros */ #define BTM_COD_MINOR_CLASS(u8, pd) \ { (u8) = (pd)[2] & BTM_COD_MINOR_CLASS_MASK; } #define BTM_COD_MAJOR_CLASS(u8, pd) \ { (u8) = (pd)[1] & BTM_COD_MAJOR_CLASS_MASK; } #define BTM_COD_SERVICE_CLASS(u16, pd) \ { \ (u16) = (pd)[0]; \ (u16) <<= 8; \ (u16) += (pd)[1] & 0xE0; \ } /* to set the fields (assumes that format type is always 0) */ #define FIELDS_TO_COD(pd, mn, mj, sv) \ { \ (pd)[2] = mn; \ (pd)[1] = (mj) + ((sv)&BTM_COD_SERVICE_CLASS_LO_B); \ (pd)[0] = (sv) >> 8; \ } inline std::string dev_class_text(const DEV_CLASS& dev_class) { std::ostringstream oss; uint16_t sv; uint8_t mj, mn; BTM_COD_SERVICE_CLASS(sv, dev_class); BTM_COD_MAJOR_CLASS(mj, dev_class); BTM_COD_MINOR_CLASS(mn, dev_class); oss << std::hex << (int)sv << "-" << (int)mj << "-" << (int)mn; return oss.str(); } #define DEVCLASS_TO_STREAM(p, a) \ { \ size_t ijk; \ for (ijk = 0; ijk < kDevClassLength; ijk++) \ *(p)++ = (a)[kDevClassLength - 1 - ijk]; \ } #define STREAM_TO_DEVCLASS(a, p) \ { \ size_t ijk; \ uint8_t* _pa = a.data() + kDevClassLength - 1; \ for (ijk = 0; ijk < kDevClassLength; ijk++) *_pa-- = *(p)++; \ }